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参数资料
型号： MAX9879ERV+
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： 音频控制
英文描述： Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier; Package: UCSP (R);30 pin;6 mm² ; Temperature: -40°C to +85°C
中文描述： 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PBGA30
封装： 2.50 X 3 MM, 0.50 MM PITCH, ROHS COMPLAINT, UCSP-30
文件页数： 23/31页
文件大小： 539K
代理商： MAX9879ERV+
MAX9879
Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Preamp = 0
58
Preamp = 5.5dB
55
Common-Mode Rejection Ratio
CMRR
fIN = 1kHz (differential
input mode)
Preamp = 20dB
43
dB
Input DC Voltage
IN__ inputs
1.22
1.3
1.38
V
Bias Voltage
VBIAS
1.13
1.2
1.272
V
SPEAKER AMPLIFIER
TA = +25°C (volume at mute)
±0.5
±4
mV
Output Offset Voltage
VOS
TA = +25°C (volume at 0dB, ENA = 1 and
ENB = 0 or ENB = 1 and ENA = 0,
ΔIN_ = 0)
±4.5
mV
Into shutdown
-70
Click-and-Pop Level
KCP
Peak voltage,
TA = +25°C
A-weighted, 32 samples
per second, volume at
mute (Note 5)
Out of shutdown
-70
dBV
PVDD_ = VDD
= 2.7V to 5.5V
50
76
f = 217Hz,
100mVP-P ripple
72
f = 1kHz,
100mVP-P ripple
68
Power-Supply Rejection Ratio
(Note 5)
PSRR
TA = +25°C
f = 20kHz,
100mVP-P ripple
55
dB
VDD = 3.7V
715
VDD = 3.3V
565
Output Power
POUT
THD+N
≤ 1%, RSPK =
8
Ω
VDD = 3.0V
470
mW
Total Harmonic Distortion + Noise
THD+N
f = 1kHz, POUT = 350mW, TA = +25°C,
RSPK = 8
Ω
0.04
0.2
%
ΔIN_ = 0
(single-ended)
92
A-weighted, ENA = 1
and ENB = 0 or ENB = 1
and ENA = 0
ΔIN_ = 1
(differential)
94
ΔIN_ = 0
(single-ended)
88
Signal-to-Noise Ratio
SNR
A-weighted ENA =
ENB = 1
ΔIN_ = 1
(differential)
92
dB
Output Frequency
700
±40
kHz
ELECTRICAL CHARACTERISTICS (continued)
(VDD = VPVDDL = VPVDDR = 3.7V, VCCIO = 1.8V, VGND = VPGNDL = VPGNDR = 0. Single-ended inputs, preamp = 0, volume controls =
0dB, BYPASS = 0, SHDN = 1. Speaker loads connected between OUT_+ and OUT_-. Headphone loads connected from HPL or HPR to
GND. RSPK = ∞, RHP = ∞. C1 = C2 = CBIAS = 1F. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
(Notes 3, 4)
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相关代理商/技术参数
参数描述
MAX9879ERV+T 功能描述:音频放大器 Audio Subsystem w/DirectDrive RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
MAX9879EVKIT+ 功能描述:音频放大器 Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
MAX987ESA 功能描述:校验器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel
MAX987ESA+ 功能描述:校验器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel
MAX987ESA+T 功能描述:校验器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel
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